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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.controller.athenz.filter;
import com.yahoo.athenz.auth.token.PrincipalToken;
import com.yahoo.vespa.athenz.api.AthenzIdentity;
import com.yahoo.vespa.athenz.api.AthenzPrincipal;
import com.yahoo.vespa.athenz.api.AthenzUser;
import com.yahoo.vespa.athenz.api.NToken;
import com.yahoo.vespa.hosted.controller.api.integration.athenz.InvalidTokenException;
import com.yahoo.vespa.hosted.controller.api.integration.athenz.ZmsKeystore;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import java.security.KeyPair;
import java.security.PrivateKey;
import java.time.Instant;
import java.util.Optional;
import static com.yahoo.vespa.athenz.utils.AthenzIdentities.ZMS_ATHENZ_SERVICE;
import static org.junit.Assert.assertEquals;
/**
* @author bjorncs
*/
public class NTokenValidatorTest {
private static final KeyPair TRUSTED_KEY = AthenzTestUtils.generateRsaKeypair();
private static final KeyPair UNKNOWN_KEY = AthenzTestUtils.generateRsaKeypair();
private static final AthenzIdentity IDENTITY = AthenzUser.fromUserId("myuser");
@Rule
public ExpectedException exceptionRule = ExpectedException.none();
@Test
public void valid_token_is_accepted() throws InvalidTokenException {
NTokenValidator validator = new NTokenValidator(createKeystore());
NToken token = createNToken(IDENTITY, Instant.now(), TRUSTED_KEY.getPrivate(), "0");
AthenzPrincipal principal = validator.validate(token);
assertEquals("user.myuser", principal.getIdentity().getFullName());
}
@Test
public void invalid_signature_is_not_accepted() throws InvalidTokenException {
NTokenValidator validator = new NTokenValidator(createKeystore());
NToken token = createNToken(IDENTITY, Instant.now(), UNKNOWN_KEY.getPrivate(), "0");
exceptionRule.expect(InvalidTokenException.class);
exceptionRule.expectMessage("NToken is expired or has invalid signature");
validator.validate(token);
}
@Test
public void expired_token_is_not_accepted() throws InvalidTokenException {
NTokenValidator validator = new NTokenValidator(createKeystore());
NToken token = createNToken(IDENTITY, Instant.ofEpochMilli(1234) /*long time ago*/, TRUSTED_KEY.getPrivate(), "0");
exceptionRule.expect(InvalidTokenException.class);
exceptionRule.expectMessage("NToken is expired or has invalid signature");
validator.validate(token);
}
@Test
public void unknown_keyId_is_not_accepted() throws InvalidTokenException {
NTokenValidator validator = new NTokenValidator(createKeystore());
NToken token = createNToken(IDENTITY, Instant.now(), TRUSTED_KEY.getPrivate(), "unknown-key-id");
exceptionRule.expect(InvalidTokenException.class);
exceptionRule.expectMessage("NToken has an unknown keyId");
validator.validate(token);
}
@Test
public void failing_to_find_key_should_throw_exception() throws InvalidTokenException {
ZmsKeystore keystore = (athensService, keyId) -> { throw new RuntimeException(); };
NTokenValidator validator = new NTokenValidator(keystore);
NToken token = createNToken(IDENTITY, Instant.now(), TRUSTED_KEY.getPrivate(), "0");
exceptionRule.expect(InvalidTokenException.class);
exceptionRule.expectMessage("Failed to retrieve public key");
validator.validate(token);
}
private static ZmsKeystore createKeystore() {
return (athensService, keyId) ->
athensService.equals(ZMS_ATHENZ_SERVICE) && keyId.equals("0")
? Optional.of(TRUSTED_KEY.getPublic())
: Optional.empty();
}
private static NToken createNToken(AthenzIdentity identity, Instant issueTime, PrivateKey privateKey, String keyId) {
PrincipalToken token = new PrincipalToken.Builder("U1", identity.getDomain().getName(), identity.getName())
.keyId(keyId)
.salt("1234")
.host("host")
.ip("1.2.3.4")
.issueTime(issueTime.getEpochSecond())
.expirationWindow(1000)
.build();
token.sign(privateKey);
return new NToken(token.getSignedToken());
}
}
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